001: /*
002: * $Id: TestNullIfFunction.java,v 1.2 2005/06/18 01:03:44 ahimanikya Exp $
003: * =======================================================================
004: * Copyright (c) 2003-2005 Axion Development Team. All rights reserved.
005: *
006: * Redistribution and use in source and binary forms, with or without
007: * modification, are permitted provided that the following conditions
008: * are met:
009: *
010: * 1. Redistributions of source code must retain the above
011: * copyright notice, this list of conditions and the following
012: * disclaimer.
013: *
014: * 2. Redistributions in binary form must reproduce the above copyright
015: * notice, this list of conditions and the following disclaimer in
016: * the documentation and/or other materials provided with the
017: * distribution.
018: *
019: * 3. The names "Tigris", "Axion", nor the names of its contributors may
020: * not be used to endorse or promote products derived from this
021: * software without specific prior written permission.
022: *
023: * 4. Products derived from this software may not be called "Axion", nor
024: * may "Tigris" or "Axion" appear in their names without specific prior
025: * written permission.
026: *
027: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
028: * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
029: * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
030: * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
031: * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
032: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
033: * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
034: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
035: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
036: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
037: * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
038: * =======================================================================
039: */
040:
041: package org.axiondb.functions;
042:
043: import java.util.HashMap;
044: import java.util.Map;
045:
046: import junit.framework.Test;
047: import junit.framework.TestSuite;
048:
049: import org.axiondb.ColumnIdentifier;
050: import org.axiondb.RowDecorator;
051: import org.axiondb.engine.rows.SimpleRow;
052:
053: /**
054: * @version $Revision: 1.2 $ $Date: 2005/06/18 01:03:44 $
055: * @author Ahimanikya Satapathy
056: * @author Jonathan Giron
057: */
058: public class TestNullIfFunction extends BaseFunctionTest {
059:
060: //------------------------------------------------------------ Conventional
061:
062: public TestNullIfFunction(String testName) {
063: super (testName);
064: }
065:
066: public static Test suite() {
067: TestSuite suite = new TestSuite(TestNullIfFunction.class);
068: return suite;
069: }
070:
071: //--------------------------------------------------------------- Lifecycle
072:
073: private RowDecorator _dec = null;
074: private ColumnIdentifier _cola, _colb = null;
075: private NullIfFunction _function = null;
076:
077: public void setUp() throws Exception {
078: super .setUp();
079: _cola = new ColumnIdentifier("A");
080: _colb = new ColumnIdentifier("B");
081: Map map = new HashMap();
082: map.put(_cola, new Integer(0));
083: map.put(_colb, new Integer(1));
084: _dec = new RowDecorator(map);
085: _function = new NullIfFunction();
086: _function.addArgument(_cola);
087: _function.addArgument(_colb);
088: }
089:
090: public void tearDown() throws Exception {
091: super .tearDown();
092: _cola = null;
093: _colb = null;
094: _dec = null;
095: _function = null;
096: }
097:
098: //--------------------------------------------------------------- Framework
099:
100: protected ConcreteFunction makeFunction() {
101: return new NullIfFunction();
102: }
103:
104: //------------------------------------------------------------------- Tests
105:
106: public void testMakeNewInstance() {
107: NullIfFunction function = new NullIfFunction();
108: assertTrue(function.makeNewInstance() instanceof NullIfFunction);
109: assertTrue(function.makeNewInstance() != function
110: .makeNewInstance());
111: }
112:
113: public void testEvaluateWhenTrue() throws Exception {
114: _dec.setRow(new SimpleRow(new Object[] { "foo", "foo" }));
115: assertNull(_function.evaluate(_dec));
116: }
117:
118: public void testEvaluateWhenFalse() throws Exception {
119: _dec.setRow(new SimpleRow(new Object[] { "foo", "foo1" }));
120: assertEquals("foo", _function.evaluate(_dec));
121: }
122:
123: public void testEvaluateWhenNull() throws Exception {
124: _dec.setRow(new SimpleRow(new Object[] { null, "foo1" }));
125: assertEquals(null, _function.evaluate(_dec));
126:
127: _dec.setRow(new SimpleRow(new Object[] { "foo1", null }));
128: assertEquals("foo1", _function.evaluate(_dec));
129: }
130:
131: public void testValid() throws Exception {
132: NullIfFunction function = new NullIfFunction();
133: assertTrue(!function.isValid());
134: function.addArgument(_cola);
135: assertTrue(!function.isValid());
136: function.addArgument(_colb);
137: assertTrue(function.isValid());
138: function.addArgument(_colb);
139: assertTrue(!function.isValid());
140: }
141:
142: }
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